Deceleration buffer mechanism and electromagnetic ejection device

Abstract

The utility model discloses a speed reduction buffer mechanism and an electromagnetic ejection device, and particularly relates to the technical field of electromagnetic ejection devices, a buffer shell is arranged on a guide rail, a buffer groove is formed in the buffer shell, a plurality of fixing rods which are arranged in a linear array are arranged in the buffer groove, and the other end of a first elastic piece is fixedly arranged at the bottom of each fixing rod. According to the speed reduction buffering mechanism and the electromagnetic ejection device, the electromagnetic block slides through the sliding groove in the guide rail, the electromagnet slides to the vertex through the buffering shell on the guide rail and then is blocked and buffered, and the assembly of the buffering electromagnet is installed through the buffering groove in the buffering shell; through the fixing rod in the buffering groove and the piston rod arranged in the fixing rod in a sliding mode, impact force generated when the electromagnet slides is buffered, buffering through air pressure is achieved through the first piston plate on the piston rod, and the piston rod is reset through the first elastic piece on the first piston plate.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic catapult technology, specifically to a deceleration buffer mechanism and an electromagnetic catapult. Background Technology

[0002] An electromagnetic catapult is a device that uses electromagnetic force to accelerate an aircraft or other object from a stationary or low-speed state to a high-speed state. It is mainly used for launching carrier-based aircraft on aircraft carriers. Compared with traditional steam catapults, electromagnetic catapults have advantages such as small size, light weight, high efficiency, and low maintenance costs.

[0003] According to the publication (announcement) number: CN203512050U, publication (announcement) date: 2014-04-02, an electromagnetic catapult is disclosed, characterized in that a guide frame guide groove is provided on the guide frame, and a deck guide groove is provided on the deck, the axis of the deck guide groove and the axis of the guide frame guide groove are in the same vertical plane; each coupling coil constituting the coupling coil group is fixedly arranged in series on the guide frame; the coil is fixedly arranged on the guide frame; a magnetic guide post passes through the magnetic guide sleeve of the coil and slides with the magnetic guide sleeve; both ends of the magnetic guide post are fixedly connected to the steel arch back, and rollers are provided on both sides of the arch back, the rollers slide with the guide frame guide groove; a lever arm seat is fixedly provided on the top of the steel arch back, and a lever arm that passes through the deck guide groove and can slide along the deck guide groove has one end hinged to the lever arm seat and the other end hinged to the deck shoe provided on the deck.

[0004] As can be seen from the aforementioned patents and prior art, after an electromagnet slides to its apex within the guide rail, it needs to be stopped. However, if the stopping force is not buffered, the electromagnet will be subjected to an impact and is easily damaged. Utility Model Content

[0005] The purpose of this invention is to provide a deceleration and buffer mechanism and an electromagnetic catapult device, which realizes the buffering of the force when the electromagnet slides.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a deceleration and buffer mechanism, including a guide rail, a sliding groove on the guide rail, a buffer housing on the guide rail, a buffer groove on the buffer housing, a plurality of fixed rods arranged in a linear array in the buffer groove, a piston rod slidably disposed in the fixed rod, a first piston plate on the piston rod, a first elastic element on the first piston plate, and the other end of the first elastic element being fixedly disposed at the bottom of the fixed rod.

[0007] Preferably, the piston rod is provided with a protective sleeve, and the protective sleeve is provided with a contact pad.

[0008] Preferably, the buffer housing is provided with a reset housing, and a partition is provided between the reset housing and the buffer housing.

[0009] Preferably, the partition plate has a connecting groove, and the buffer housing is connected to the reset housing through the connecting groove.

[0010] Preferably, the reset housing has a reset cavity, and a second piston plate is provided in the reset cavity. The second piston plate is provided with a plurality of second elastic elements arranged in a linear array, and the other end of the second elastic element is fixedly disposed in the reset cavity.

[0011] Preferably, the first elastic element is a spring.

[0012] Preferably, the second elastic element is a spring.

[0013] An electromagnetic catapult device includes the deceleration and buffer mechanism described in the above-mentioned solution, comprising a guide rail with a groove formed thereon, and a buffer housing disposed on the guide rail.

[0014] In the above technical solution, the deceleration buffer mechanism and electromagnetic catapult device provided by this utility model have the following beneficial effects: the electromagnetic block is slid by the slide groove in the guide rail, the electromagnet is slid to the top of the guide rail by the buffer housing and then blocked and buffered, the buffer groove in the buffer housing realizes the installation of the buffer electromagnet component, the fixed rod in the buffer groove and the piston rod slidably set in the fixed rod realize the buffering of the impact force of the electromagnet when sliding, the first piston plate on the piston rod realizes the buffering by air pressure, and the first elastic element on the first piston plate resets the piston rod. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0017] Figure 2 A cross-sectional structural schematic diagram provided for an embodiment of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the buffer shell provided in an embodiment of the present utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 11. Guide rail; 2. Slide groove; 3. Buffer housing; 4. Buffer groove; 5. Fixing rod; 6. Piston rod; 7. Protective sleeve; 8. Contact pad; 9. First piston plate; 10. First elastic element; 21. Partition plate; 22. Communicating groove; 33. Reset housing; 44. Reset cavity; 55. Second piston plate; 66. Second elastic element. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-3 As shown, a deceleration buffer mechanism and an electromagnetic catapult device include a buffer housing 2 with a buffer groove 21, a plurality of fixed rods 22 arranged in a linear array in the buffer groove 21, a piston rod 23 slidably disposed in the fixed rod 22, a first piston plate 26 disposed on the piston rod 23, a first elastic element 27 disposed on the first piston plate 26, and the other end of the first elastic element 27 being fixedly disposed at the bottom of the fixed rod 22.

[0023] It includes a guide rail 1, on which a sliding groove 11 is provided, and a buffer housing 2 is disposed on the guide rail 1.

[0024] Specifically, when the electromagnet slides to the top of the groove 11 on the guide rail 1, it will contact the fixed rod 22 in the buffer groove 21 on the buffer housing 2. The piston rod 23 in the fixed rod 22 slides inward and drives the first piston plate 26 to slide inward, so that the bottom of the first piston plate 26 and the fixed rod 22 form a sealed cavity. At the same time, when the first piston plate 26 moves inward, the first elastic element 27 is subjected to force. After the impact force is digested, the first elastic element 27 releases the force and resets the piston rod 23 and the first piston plate 26.

[0025] In the above scheme, the electromagnet is slidable by the slide groove 11 in the guide rail 1, and the electromagnet is blocked and buffered after sliding to the top by the buffer housing 2 on the guide rail 1. The buffer groove 21 in the buffer housing 2 realizes the installation of the buffer electromagnet assembly. The fixed rod 22 in the buffer groove 21 and the piston rod 23 slidably set in the fixed rod 22 realize the buffering of the impact force of the electromagnet when sliding. The first piston plate 26 on the piston rod 23 realizes the buffering by air pressure. The first elastic element 27 on the first piston plate 26 resets the piston rod 23.

[0026] As a further embodiment provided by this utility model, according to Figure 2 and Figure 3As shown, a protective sleeve 24 is provided on the piston rod 23, and a contact pad 25 is provided on the protective sleeve 24.

[0027] Specifically, when the electromagnetic block slides into the buffer housing 2, it will come into contact with the contact pad 25 on the protective sleeve 24 to reduce the impact force.

[0028] As a further embodiment provided by this utility model, according to Figure 2 and Figure 3 As shown, a reset housing 30 is provided on the buffer housing 2, and a partition 28 is provided between the reset housing 30 and the buffer housing 2.

[0029] Furthermore, a connecting groove 29 is provided on the partition 28, and the buffer housing 2 is connected to the reset housing 30 through the connecting groove 29.

[0030] Furthermore, a reset cavity 31 is provided inside the reset housing 30, and a second piston plate 32 is provided inside the reset cavity 31. A plurality of second elastic elements 33 are arranged in a linear array on the second piston plate 32, and the other end of the second elastic element 33 is fixedly disposed inside the reset cavity 31.

[0031] Specifically, when the first piston plate 26 moves inward, the gas enters the reset cavity 31 inside the reset housing 30 and pushes the second piston plate 32 inward, causing the second elastic element 33 to be subjected to force, thus buffering the impact of the electromagnetic block and forming a relative force with the impact force of the electromagnetic block to complete the buffering. At the same time, after the impact ends, the second elastic element 33 pushes the second piston plate 32 to reset.

[0032] Working principle: When the electromagnet slides to the top of the groove 11 on the guide rail 1, it will contact the fixed rod 22 in the buffer groove 21 on the buffer housing 2. The piston rod 23 in the fixed rod 22 slides inward and drives the first piston plate 26 to slide inward, so that the bottom of the first piston plate 26 and the fixed rod 22 form a sealed cavity. At the same time, when the first piston plate 26 moves inward, the first elastic element 27 is subjected to force, and gas enters the reset cavity 31 in the reset housing 30, pushing the second piston plate 32 to move inward and subjecting the second elastic element 33 to force, thus buffering the impact of the electromagnet and forming a relative force with the impact force of the electromagnet to complete the buffering. After the impact ends, the second elastic element 33 pushes the second piston plate 32 to reset, and the first elastic element 27 releases the force, resetting the piston rod 23 and the first piston plate 26.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A deceleration and buffer mechanism, characterized in that, The device includes a buffer housing (2), on which a buffer groove (21) is provided. A plurality of fixed rods (22) arranged in a linear array are provided in the buffer groove (21). A piston rod (23) is slidably provided in the fixed rod (22). A first piston plate (26) is provided on the piston rod (23). A first elastic element (27) is provided on the first piston plate (26). The other end of the first elastic element (27) is fixedly provided at the bottom of the fixed rod (22).

2. The deceleration and buffer mechanism according to claim 1, characterized in that, The piston rod (23) is provided with a protective sleeve (24), and the protective sleeve (24) is provided with a contact pad (25).

3. The deceleration and buffer mechanism according to claim 1, characterized in that, A reset housing (30) is provided on the buffer housing (2), and a partition (28) is provided between the reset housing (30) and the buffer housing (2).

4. The deceleration and buffer mechanism according to claim 3, characterized in that, The partition (28) has a connecting groove (29), and the buffer housing (2) is connected to the reset housing (30) through the connecting groove (29).

5. A deceleration and buffer mechanism according to claim 4, characterized in that, The reset housing (30) has a reset cavity (31) inside, and a second piston plate (32) is provided inside the reset cavity (31). The second piston plate (32) is provided with a plurality of second elastic elements (33) arranged in a linear array. The other end of the second elastic element (33) is fixedly disposed inside the reset cavity (31).

6. The deceleration and buffer mechanism according to claim 1, characterized in that, The first elastic element (27) is a spring.

7. A deceleration and buffer mechanism according to claim 5, characterized in that, The second elastic element (33) is a spring.

8. An electromagnetic catapult device, characterized in that, The deceleration and buffer mechanism according to claims 1-7 includes a guide rail (1), on which a groove (11) is provided, and the buffer housing (2) is disposed on the guide rail (1).

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